Perhaps you should try some spelling variations:
yong yang » dong yang, ying yang, kyoung yang
yang yang » wang yang, wang yan
gene wang » gene bank, wen wang
wang jing » wang ning, wang liang, wang yang
zhong zhi » zhang zhi, hong ghi, zhong tai
hua gene » human gene, a gene, hua ren
hai » hadi, haji, hari

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yong yang) OR (yang yang)) hua gene wang jing ((zhong zhi) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yong yang) OR (yang yang)) hua gene wang jing ((zhong zhi) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yong yang) OR (yang yang)) hua gene wang jing ((zhong zhi) or (dang hai)) ;*".